Force Feedback strength

I have been playing F1 2017 on PC for 2 weeks, decided to upgrade my video card (to a gtx 1060).
Changed it yesterday and tried to play.
Everything looks amazing, but all of a sudden, my Force Feedback is not reacting the same at all ?

The Brazil straight used to give good vibrations with the steering jerking around a lot, but now it's about 20% of what it was....